Using Jacks Safely

Multiple Jacks: Most operations require multiple jacks. It is impossible to raise/lower them in perfect unison, causing uneven loading. Ensure jack capacity is adequate to handle load transfer. Keep the load level.

Floor Stability: Ensure the floor can withstand the point load. Use floor plates to spread the load if necessary. Avoid buried cables or pipes.

Contact: The jack head must be in full, firm contact with the jacking point. Use packers to prevent slipping.

Storage & Handling

Store jacks upright with the ram/rack/screw fully lowered to protect them from damage. Remove handles/levers and store separately. Never store damaged jacks.

In-service Inspection

Clean jacks regularly to remove dirt from racks, screws, and seals. Check hydraulic oil levels. Lubricate moving mechanical parts.

Defects to Watch For:

• Failure to lift or lower; load slipping/creeping.
• Cracked or distorted body/base.
• Bent operating levers.
• Hydraulic: Oil leaks, scored/distorted rams, inoperative release valves.
• Mechanical: Chipped/worn rack teeth or screws, seized swivel heads.